2011 W204 C Class - gearbox service & map?

[87djames]

Hiya,

what are peoples thoughts on gear box service and is there any mapping options for the gearbox? mine just seems a little laggy in high speeds and a little clunky in very very crawling speeds?

The cars creeping upto 100k miles and as much as I want to spend some money on it I also want to maintain it nicely

 

[OneForTheRoad]

Oil change and filter on a nag2+ is 77.500 miles. Nag2 is around 40000 miles. Costs around £200 .

 

[Gazwould]

Tornado Tuning T Box .

 

[Gollom]

Tornado Tuning T Box .

Sounds interesting - do you have one?

 

[Gazwould]

No , alegedy removes pulling away pedal lag , speeds shifting up by 30% and relaxes torque limiters .

 

[markjay]

A 2011 W204 will be the facelift model and will have the 7G+ (NAG2+) box, with the ECO Stop/Start.

As a first step, you can get the TCU software updated to the latest version, this can be done by any MB dealer, or by a specialist with genuine STAR and subscription. The software is free, the labour charge will be £50-£60.

Then, drive the car hard for a while, the transmission should adapt and become a little sharper.

You can also try remapping or fitting a Diesel tunning box for the engine, your 2011 C220CDI will have the OM651 engine, and improving the torque will help with the feel of the transmission response. I don't know if the engine tuners will also remap the TCU to match - best check directly with them.

 

[markjay]

If you are looking at TCU remapping via the OBDII port, then try to find a reputable brand that has been tested by an impartial tuner, because there were many reports about 'TCU remapping' boxes that contained nothing more than a flashing LED and a beeper inside... relying on placebo effect to do the job

 

[87djames]

A 2011 W204 will be the facelift model and will have the 7G+ (NAG2+) box, with the ECO Stop/Start.

As a first step, you can get the TCU software updated to the latest version, this can be done by any MB dealer, or by a specialist with genuine STAR and subscription. The software is free, the labour charge will be £50-£60.

Then, drive the car hard for a while, the transmission should adapt and become a little sharper.

You can also try remapping or fitting a Diesel tunning box for the engine, your 2011 C220CDI will have the OM651 engine, and improving the torque will help with the feel of the transmission response. I don't know if the engine tuners will also remap the TCU to match - best check directly with them.

hi mate thanks for coming back tome, great advise on this ... I think I’ll get a good service done on the car inc gearbox, then look at getting this TCU updated and then finally a remap to get that added tourques

 

[Gollom]

hi mate thanks for coming back tome, great advise on this ... I think I’ll get a good service done on the car inc gearbox, then look at getting this TCU updated and then finally a remap to get that added tourques

I'm curious - what difference will that all make in real-world driving? Not a loaded question BTW!

 

[87djames]

I'm curious - what difference will that all make in real-world driving? Not a loaded question BTW!

I’m very interested too, does anyone recommend anyone local to Hertfordshire area?

 

[87djames]

Oil change and filter on a nag2+ is 77.500 miles. Nag2 is around 40000 miles. Costs around £200 .

Hiya, do you know how I go about finding out if I have a NAG2 or NAG2+ ?

 

[Deleted member 149005]

Hiya, do you know how I go about finding out if I have a NAG2 or NAG2+ ?

Does your car have stop / start?

 

[OneForTheRoad]

Anything after June 21, 2010 . Uses blue fluid. I maybe made an error earlier and mileage it seems is 70.000 miles. Not 77500.

 

[Gazwould]

77500 / 5 years was the case late 2018 as I quadruple checked with two main and two indi .

 

[OneForTheRoad]

77500 / 5 years was the case late 2018 as I quadruple checked with two main and two indi .

Mb website said 77500 for mine tbh. I just read otherwise somewhere. ? I'm on 70k now but at 5 years. Its driving fine so I'll edge my bets and think about having it done at maybe 75k.

 

[87djames]

Does your car have stop / start?

well, it has the "eco" button on the dash dash / console but never managed for it to actually kick in ..

 

[OneForTheRoad]

well, it has the "eco" button on the dash dash / console but never managed for it to actually kick in ..

Check behind the battery in the boot for a fuse holder ( single ) 7.5 amp. Or just leave it as is . It's bad for the engine tbh.

 

[87djames]

Check behind the battery in the boot for a fuse holder ( single ) 7.5 amp. Or just leave it as is . It's bad for the engine tbh.

if its bad for the engine ill leave it there tbh that's the first thing I turn off in my Q5

 

[markjay]

Mb website said 77500 for mine tbh. I just read otherwise somewhere. ? I'm on 70k now but at 5 years. Its driving fine so I'll edge my bets and think about having it done at maybe 75k.

You must be looking at the wrong place... check on ESS Lite.

For the 7G-Tronic+ it is most definitely 77,500 miles or 5 years, the earlier of the two.

 

[OneForTheRoad]

if its bad for the engine ill leave it there tbh that's the first thing I turn off in my Q5

The stop start is bad for the engine . Just to make that clear.